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| author | Tomohito Esaki <etom@igel.co.jp> | 2022-01-28 09:08:34 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2022-01-31 23:45:23 +0300 |
| commit | 2af104290da5e4858e8caefa068827d7392c6a09 (patch) | |
| tree | 4760e7ee41888b74c664dc9bee58fd8b28a7b10f /drivers/gpu/drm/nouveau | |
| parent | 9987151a90567785beebcbd5c8ac58d05f254137 (diff) | |
| download | linux-2af104290da5e4858e8caefa068827d7392c6a09.tar.xz | |
drm: introduce fb_modifiers_not_supported flag in mode_config
If only linear modifier is advertised, since there are many drivers that
only linear supported, the DRM core should handle this rather than
open-coding in every driver. However, there are legacy drivers such as
radeon that do not support modifiers but infer the actual layout of the
underlying buffer. Therefore, a new flag fb_modifiers_not_supported is
introduced for these legacy drivers, and allow_fb_modifiers is replaced
with this new flag.
v3:
- change the order as follows:
1. add fb_modifiers_not_supported flag
2. add default modifiers
3. remove allow_fb_modifiers flag
- add a conditional disable in amdgpu_dm_plane_init()
v4:
- modify kernel docs
v5:
- modify kernel docs
Signed-off-by: Tomohito Esaki <etom@igel.co.jp>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220128060836.11216-2-etom@igel.co.jp
Diffstat (limited to 'drivers/gpu/drm/nouveau')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_display.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 2b460835a438..2cd0932b3d68 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -708,10 +708,12 @@ nouveau_display_create(struct drm_device *dev) &disp->disp); if (ret == 0) { nouveau_display_create_properties(dev); - if (disp->disp.object.oclass < NV50_DISP) + if (disp->disp.object.oclass < NV50_DISP) { + dev->mode_config.fb_modifiers_not_supported = true; ret = nv04_display_create(dev); - else + } else { ret = nv50_display_create(dev); + } } } else { ret = 0; |